Steam and hot-water boiler



3 Sheets-Sheet 1.

(No Model.)

O. B. RICE.

STEAM AND HOT WATER BOILER.

Patented Oct. 19, 1886.

' it jli r'rzezi 3 Sheets-Sheet 2.

(No Model.)

Patented Oct. 19, 1886.

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. 'l ll I II I REM! . IIIIIIIIII 0. B, RICE.

STEAM AND HOT WATER BOILER.

HM x/M (No Model.) 3 Sheets-Sheet 3.

O. B. RICE.

STEAM AND HOT WATER BOILER.

No. 351,070. Patented Oct. 19, 1886.

UNITED STATES PATENT @FFIQE.

CHARLES B. RICE, OF CHICAGO, ILLINOIS.

STEAM AND HOT-WATER BOILER.

SPECIFICATION forming part of Letters Patent No. 351,070, dated October19, 1886.

Applcation filed April 29, 1886.

To all whom it may concern.-

the following is a specification.

This invention relates to improvements on i the apparatus described inLetters Patent granted to Mortimer B. Mills and Charles B. Rice,assignors to Rice, No. 232,101, September 7, 1880, feedcookers, theapparatus de scribed in said invention having been mainly used forgenerating steam for cooking feed.

By means of the improvements herein described I utilize the apparatusfor generating steam for the purposes of heating buildings, heatingwater, running engines and machinery, and for all purposes for whichsteam, either at high or low pressure, can be used. I also utilize theapparatus for heating water by circulation for the purpose of heatingbuildings, and for all other purposes for which hot water can he used,the object of my invention being to provide, first, a compact andself-contained apparatus of the water-tube style of boiler, simple inoonstruction,and with the tubes and other parts so arranged that a largearea of heating-surfaceis obtained within asmall compass, and at thesame time a large economy of fuel is secured and the fuel is utilized tothe greatest advantage; second, an apparatus so constructed that it canbe easily put in repair, if occasion require, with common tools and byordinary workmen, which is easy to take care of and regulate, insomuchas it is built in such a manner that appliances can be easily attachedto it for the automatic regulation of the water and fuel supply andsteam-pressu re, as shown by my automatic valve and float, self-feedingfuel-magazine, and my automatic dampers; third, an apparatus which, whenemployed as a water-circulator or to heat water by circulation throughit, by reason of the vertical position of the water-tubes and theunobstructed form of the water-spaces, together with the large amount ofsurface exposed to the action of fire, produces a rapid and perfeetcirculation of the water through the-boiler and connectingpipes andradiators. I attain these objects by means of the apparatus shown in theaccompanying drawings, in which- Serial No. 200,537. (No model.)

Figure 1 represents a sectional view of my apparatus, showing also themanner of attaching my valve and float for the automatic regulation ofthe water-supply. Fig. 2 is a sectional view of my combined safety andvacuum valve; Fig. 3, a horizontal view ofFig. 2, looking upward fromthe base of the View. Fig. at is a modification of my apparatus arrangedwith my dampers for automatically regulating the drafts to control thesteam-pressure, and arranged with fuel-magazine to supply the fuelautomatically. Fig. 5 is a sectional View of my apparatus when used as awatercirculator or for heating water by circulation through it.

The details of the construction and arrange ment of my apparatus are asfollows, similar letters referring to similar parts throughout theseveral views.

The boiler consists of a hollow ring shaped casting, B, and water-front13, connected with lower section of steam-dome A by a circular row oftubes. The sheet-iron or steeljacket E surrounds the tubes andwaterfront and with them incloses the furnace.

O is the fuel-door.

The water-tubes C C are screwed into the base B and water-front B, andare connected at the bottom of dome A by a joint with double lock-nuts,or made with right and left threads and screwed into base and dome. TheWaterfront B is connected with the casting B by a short piece of pipe.

The dome A consists of two hollow ringshaped castings, theopeningsthrough which, formed by the inner conical tube of the castings,form the smoke-flue D from the furnace. The two castings for the domeare provided with flanges A A and held together by bolts, the jointsbeing made water-tight by the packing P P. In the center of the castingB is placed the grate G, under which is the ashboX F. To the rod of thedamper U is suspended the flame deflector T. R is the floatboX,containing the valve and float for automatically regulating thewater-supply.

H is a pipe running from float-box through one of the tubes, and used toconvey to the base the water for supplying the boiler.

K is the watersupplypipe; S, the valve for emptying the boiler.

I from aperture to.

5 In the modification shown in Fig. 4 I place the fuel-magazine V Withinthe smoke-flue D.

The smoke thus passes on the outside of fuelmagazine V and out throughthe pipeD at the point where the damper m is shown. t represents thecover to the fuel-magazine wherein the fuel is placed. When the pressureof the steam in dome Ais sufficient, itforces the water up the pipe 9 tothe diaphragm contained in box 9, and the movement of the lever coni 5nected therewith closes the damper in the pipe D and draftdoor it,connected by the chain, as shown.

In Fig. 5 my apparatus is shown when used as ,a water-cireulator, or forheating water by circulating the water through it in con nection withatank for heating water, or in connection with a coil of heatingpipes orradiators. The dome A in this modification is filled with water at alltimes and no steam is generated, the water 2 circulating through theentire apparatus and connecting-pipes.

In Fig. 2 I show the construction of my combined safety and vacuumvalve. n represents the safety-valve weight; a, the aperture 0 in whichrests the plunger 0; e, the seat; d, the

safety-valve; 7c, the valve-case; b, the casein which is placed plunger0; h, the channel from dome to aperture a.

When the pressure of the steam is sufficient,

it raises the safety-valve and the steam'escapes below the seat 6, thusforming the ordinary safety-valve. thread, as shown, for attachiugit tothe boiler. The aperture a in safety-weightn contains the 40 case b, inwhich is placed the plunger 0, as

shown. The upper part of valve (1 forms the seat e, and to the seat a isattached case b. Safety-weight n incloses case b and rests upon seat 0.Seat 0 is provided with grooves, as

' 5 shown in Fig. 3, and is provided with channel h, opening into valved, so that when plunger 0 rests on 6 there is a free passage of air fromthe outside into aperture a, the grooves in seat 0, channel h, and valved into theboil- When steam is up a very slightpressure will raise theplunger 0', so as to close the aperture a, thus preventing the escape ofsteam and condenses in the boiler, the steam-pressure is removed and theplunger 0 drops back onto seat 0 and allows the air to pass down Thevalve-case It has a When the steam goes down through aperture a, groovesin seat e,channel h, and valved into boiler. The formation of a vacuumin theboiler is thusprevented and the-annoyance from the suction backinto the boiler obviated.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, 1s I 1. Theimproved steam boiler'and heater,consisting of the hollow ring-shaped casting B, water-front B,steam-dome A, consisting of two castings, and constructed with flanges AA and packing P P, smoke-flue D, jacket E, door 0, water-tubes G C,grate G, ash-box F, damper U, and supporting flame-deflector T,substantially as shown and described.

2. Theimproved steam boiler and heater, consisting of the hollowring-shaped casting B, water-front B, steam-dome A, consisting of twocastings, and constructed with flanges A A and packing 'P P",smoke-liue'D, jacket E, door 0, water-tubes C O, grate G, ash-box F,damper U, supporting flame-deflector T, box R, containing automaticvalve-and float, and pipes J andH, in combination with safety and vacuumvalve N, consisting of valve-weight n, plunger 0, aperture a, andseatve, constructed and arranged substantially as described and shown.

3. The improved steam boiler or heater, consisting of hollow ring-shapedcasting B, water-front B, steam-dome A, consisting of two castings andconstructed with flanges A A and packing PP, jacket E, doorO,'watertubes 0 O,.safety-valve N, grate G, ash-box F, damper 0c, placedat opening of pipe D, magazine-feed V, with its opening and cover 1.,and chimney D, in combination with pipe g,and boX y, with its diaphragmand lever operating'the dampers m and h, substantially as described andset forth. r

4. The improved hot-water heater or,circulator, consisting of hollowring-shaped casting B, water-front B, steam-dome A, consisting of twocastings, and constructed with flanges A A, and packing P P, tubes 0 0,jacket E, door 0, grate G, ashbox F, smoke flue or chimney D,surrounding fnel-magazineV,fueldoor t, and damper a:, all arranged andconstructed substantially as described, and for the purpose specified. i

onAs. B. RICE.

